The calls offered new details about what was happening inside the home when the teens became ill.

The caller said her brother-in-law had friends in the home, and they were clearly under the influence of something.

Caller: My roommate is trying to get them to calm down, and he can't. He is trying to talk to them calm, but they're not responding to him. They're just going crazy ... Do you hear this?

Dispatcher: Yes, I hear them.

Caller: Oh my God. Oh my God. I need help. Where the hell are they at? They are taking forever. This is crazy, and they are not here still ... Wow. Twenty minutes to get here, and they still aren't here.

Krystopher Sansone, 17, died, and three others were sent to a hospital.

Investigators said they all overdosed, but they haven't said what was taken.

Sansone's mother, Lucy Sansone, said she learned of her son's death on the way home from church.

"What I received from the hospital is one sneaker, a pair of underwear, two socks and his watch," Lucy Sansone said. "That's what I have left of my son from that night."

Sansone's mother is pregnant. His stepfather and two younger siblings were devastated by the news, especially since the victim had completed a drug diversion program.

"It's unfortunate that three weeks later my son is dead," Lucy Sansone said.

The results of toxicology results are still pending to determine Sansone's cause of death.

"I want answers now. I want answers to something as simple as where is my son's other sneaker? Where is my son's wallet? Where is my son's cellphone? Where is my son's jacket?" Lucy Sansone said.

"I don't think anyone should go through what we went through last Sunday night," stepfather Tim Sansone said.

The family is now doing all they can to help others move forward as they grieve the loss of their oldest son. They are asking teens to sign a pledge to remain drug free and wear blue and white wristbands as a symbol to stay away from drugs.

The bands bear Sansone’s name, and “C.R.E.W. 180,” which stands for “Choosing Right Over Easy Wrong,” and making a 180 degree change for good.

Sansone’s girlfriend was the first to sign the pledge.

Pledge cards and wristbands are available at Cake in the City bakery at 737 North Apopka Vineland Road in Orlando.

The family would like those attending Sansone's viewing services and funeral to wear the bands. His funeral is scheduled for noon Monday.